We've seen not one but two modern reinterpretations of Sherlock Holmes in the last couple of years, plus countless procedural dramas, including forensic-themed shows like Bones and CSI. Meanwhile, TV audiences are utterly charmed by historical dramas like Downton Abbey and Boardwalk Empire. And just this summer, ABC… »2/17/13 7:00am 2/17/13 7:00am